CVE-2021-47888— Textpattern 4.8.3 - Remote code execution
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I. Basic Information for CVE-2021-47888
Vulnerability Information
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Vulnerability Title
Textpattern 4.8.3 - Remote code execution
Source: NVD (National Vulnerability Database)
Vulnerability Description
Textpattern versions prior to 4.8.3 contain an authenticated remote code execution vulnerability that allows logged-in users to upload malicious PHP files. Attackers can upload a PHP file with a shell command execution payload and execute arbitrary commands by accessing the uploaded file through a specific URL parameter.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
危险类型文件的不加限制上传
Source: NVD (National Vulnerability Database)
Vulnerability Title
Textpattern 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Textpattern是Textpattern团队的一款简洁而又漂亮的Blog引擎。 Textpattern 4.8.3之前版本存在安全漏洞，该漏洞源于允许上传恶意PHP文件，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| The Textpattern Development Team | Textpattern | 4.8.3 | - |
II. Public POCs for CVE-2021-47888
| # | POC Description | Source Link | Shenlong Link |
|---|
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- Textpattern 4.8.3 - Remote code execution | Advisories | VulnCheckthird-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-47888
IV. Related Vulnerabilities
Same weakness: CWE-434
- CVE-2021-47943
TextPattern CMS 4.8.7 Remote Code Execution via File Upload - CVE-2021-47937
e107 CMS 2.3.0 Authenticated Remote Code Execution via Theme - CVE-2026-41517
Emlog: Remote Code Execution via Malicious Plugin Upload - CVE-2026-6692
Slider Revolution 7.0.0 - 7.0.10 - Authenticated (Subscriber - CVE-2026-41587
CI4MS: Unrestricted PHP File Upload via Theme Installation L
V. Comments for CVE-2021-47888
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